Improvement in treating fabrics to render them water-proof



PATENT OFFICE.

QHABLES TOPPAN, on WAKEFIELD, MASSACHUSETTS.

IMPROVEMENT IN TREATING FABRICS Tb RENDER THEM WATER-PROOF.

Specification forming part of Letters Patent No. 103,799, dated May 31, 1870.

I, GHARLns TorrAN, of Wakefield, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in the Treatment of Fabrics so as to Render them ater-Proof, of which the following is a description:

' I have already obtained two patents, dated April 20, 1869, and numbered 89,094 and 89,095, for an invention having a similar object in view, and referto these patents for a description of the process therein described, which is substantially the saturation of substances with a solution of paraffine dissolved in naphtha or other volatile solvent. I have discovered, howeverfthat when this process is used, and especially when ityis applied to thick woven and felted fabrics, the result is to render the fabric stifl, and to cause it to retain\ the folds and creases which are made by use; and the object ofm'y' present inven tion is to obviate this difficulty. To accomplish this, I take the solution of paraffine, which is described in my former patents, above mentioned, and I add to it-a small amount of suitable oil product, as more fully described hereafter, and I then immerse the substances to be treated in or pass them through this mixture of naphtha, para-nine, and oil product,

and evaporate the solvent 'in the same mannor as is described 1n my former patents.

The oil product which is most suitable for the purpose is that which I have inventedand described in a patent issued to me dated February 1, 1870, and numbered 99,500.

From two to four ounces of this oil product should be added to a gallon of the solution of paraffine for ordinary woven goods; but exact proportions are not required in the mixture,

' and a much larger quantity of oil product may be used, especially for goods which may be carbon oils, and especially what are known as parafline oils, may be used, instead of the oil product above described, and will produce rcsults tending to the same object, but areobjectionable on account of their odor,and because, they leave the fabric greasy and oily.

I accomplish the same object in another way. I take the substance which is described in my last-mentioned patent, and there denominated amorphous parafiine, and dissolve it in naphtha in the same way as the ordinary parafline is dissolved, and then use it in the treatment of fabrics in the same manner as the other solutions. When this is done it is not necessary to add any oil product to the mixture, as before described.

Claims.

I claim as my invention- 1. The process of treating fabrics with the mixture of paraffine, naphtha, and oil product, as before described.

2. The process of treating fabrics with the mixture of naphtha and amorphous paraffine, as before described.

3. As .a new article of manufacture, the above-described'compound of paraffiue, naphtha, and oil product.

4. As a new article of manufacture, the above-described compound of naphtha and amorphous paraffiue.

5. As a new article of manufacture, the fabric, article, or substance so treated with. either of the above-described mixtures.

Witnesses: CHARLES TOPPAN.

DAN. A. GLEASON, (humans A. PHILLIPS. 

